---
product_id: 461804801
title: "Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet"
brand: "selenium"
price: "₪464"
currency: ILS
in_stock: true
url: https://www.desertcart.co.il/products/461804801-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite
store_origin: IL
region: Israel
---

# 40° x 40° precise dispersion 300W max power Aluminum heat dissipation Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet

**Brand:** selenium
**Price:** ₪464
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your sound game with precision and power!

## Quick Answers

- **What is this?** Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet by selenium
- **How much does it cost?** ₪464 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/461804801-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite)

## Best For

- selenium enthusiasts

## Why This Product

- Trusted selenium brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Powerful & Versatile:** Handles up to 300W program power, ideal for both low and high-power audio setups.
- • **Precision Sound Coverage:** Bullet-shaped horn delivers focused 40° x 40° dispersion for immersive listening.
- • **Durable & Efficient Build:** Aluminum base and phenolic diaphragm ensure longevity and natural sound reproduction.
- • **Quick & Easy Installation:** Magnetic mount and quick coupling connectors streamline setup for professionals on the go.
- • **Crystal-Clear High Frequencies:** Experience ultra-detailed sound without harshness, perfect for audiophile-grade clarity.

## Overview

The Selenium ST400TRIO is a high-performance 8 Ohm super frequency tweeter designed for exceptional clarity and detail in high-frequency audio. Featuring a durable aluminum base for superior heat dissipation, a phenolic diaphragm for natural sound, and a bullet-shaped horn for precise 40° x 40° dispersion, it supports up to 300 Watts program power. Ideal for vehicle sound systems and professional audio setups, it combines rugged build quality with easy magnetic mounting and quick connectors for seamless integration.

## Description

Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet

## Features

- Super tweeter for outstanding detail & clarity in high-frequencies without harshness. The St400 TRIO may be used individually in lower power systems or arrayed for increased coverage & SPL in higher power systems. The base & diffuser are constructed of aluminum contributes to better heat dissipation of the coil moves, w/finish machining of diamond (diamond tool) & varnished.
- The bullet-shape horn design offers a longer throw 40 Degrees x 40 Degrees dispersion. The phenolic annular diaphragm is long-lasting, cost-effective & more natural-sounding than metallic diaphragms.
- The use of high-temperature materials & adhesives improves power handling & produces exceptionally high acoustic output. Together w/magnetic ring of aluminum ensuring a high-definition & efficiency across its fixed playback. Connectors w/quick couplings
- * Nominal impedance: 8 ohms * Minimum impedance at 9,400 Hz: 7.8 ohms * Frequency response at -10 dB: 4,000 to 20,000 Hz * 40 x 40 degrees sound dispersion
- * Recommended maximum program power while using crossover at 8000 Hz: 300 Watts * Recommended maximum program power while using crossover at 5000 Hz: 200 Watts * Diaphragm material: Phenolic * Voice coil diameter:.42 (1.6) mm (in)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Is Electric | No |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 300 Watts |
| Connectivity Protocol | Ethernet |
| Connectivity Technology | wired |
| Audio Driver Type | Dynamic Driver |
| Item Weight | 3.73 Pounds |
| Item Dimensions D x W x H | 6"D x 4.7"W x 5.5"H |
| Impedance | 8 Ohm |
| Frequency Response | 2E+4 Hz |
| Compatible Devices | Laptop, Desktop, Television |
| Speaker Size | 1.6 Inches |
| Water Resistance Level | Not Water Resistant |
| MP3 player | No |
| Specific Uses For Product | vehicle sound systems |
| Controller Type | ring |
| Is Waterproof | False |
| Control Method | App |
| Audio Output Mode | Stereo |
| Mounting Type | Magnetic Mount |
| Material Type | aluminum, phenolic |
| Speaker Type | Tweeter |
| Additional Features | Durable, Lightweight |
| Recommended Uses For Product | vehicle sound systems |

## Product Details

- **Brand:** Selenium
- **Speaker Maximum Output Power:** 300 Watts
- **Frequency Response:** 20000 Hz
- **Connectivity Technology:** wired
- **Audio Output Mode:** Stereo

## Images

![Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet - Image 1](https://m.media-amazon.com/images/I/61lbj7jZ28L.jpg)

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**Shop now:** [https://www.desertcart.co.il/products/461804801-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite](https://www.desertcart.co.il/products/461804801-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-01-22*